Single Arm Bench Dumbbell Wrist Curl

In SetGrip: Dumbbell Wrist Curl (Single Arm, Bench)

Secondary muscles
Biceps, Delts
Body part
Forearms
Position
Standing
Laterality
Unilateral (one arm at a time)
Category
Strength

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One dumbbell, one forearm laid across a bench: the setup isolates a single flexor group so completely that you can watch the muscle shorten as the wrist curls. Use the free hand to pin your elbow to the pad when reps get ugly. Alternating arms with no rest also turns short sets into continuous work.

How to do the Single Arm Bench Dumbbell Wrist Curl

  1. Sit on a bench with your feet flat on the ground and hold a dumbbell in one hand, palm facing down.
  2. Rest your forearm on the bench with your wrist hanging off the edge.
  3. Slowly curl your wrist upwards, bringing the dumbbell towards your forearm.
  4. Pause for a moment at the top, then slowly lower the dumbbell back down to the starting position.
  5. Repeat for the desired number of repetitions, then switch to the other arm.

Tip: Use higher reps, 15 to 25, and lower the weight through a full three-second descent.

Muscles worked

Primary

Forearms · Arms

Wrist curls work the flexors on the palm side and reverse wrist curls the extensors on the back, and both should burn deeply by the end of a set of 15 to 20.

Secondary

Common mistakes

  • Using the whole armthe forearms should rest on a bench or your thighs with only the hands moving; if the elbows lift, you are cheating.
  • Gripping hard on the descentlet the bar roll down to the fingertips at the bottom of a wrist curl for the full range before curling back up.
  • Reverse curls too heavythe wrist extensors are small, so use about half of what you use for regular wrist curls.
  • Fast, short repsgo slowly through the full range and feel the stretch at the bottom, since jerky reps with a heavy weight are how wrists get irritated.

Sets, reps and where it fits

GoalSets × repsRest
Muscle growth3–4 × 10–15 per side60–90 s
Endurance / finisher2–3 × 15–20 per side45 s
StrengthNot ideal — pick a compound lift for the same muscle

Wrist curls go last in a session after all the pulling and gripping work is done. Superset regular and reverse wrist curls back to back with the same bar.

Variations and alternatives

Frequently asked questions

What muscles does the Single Arm Bench Dumbbell Wrist Curl work?

The Single Arm Bench Dumbbell Wrist Curl primarily works the forearms. It also involves the biceps and delts, which assist the movement and stabilise the joints.

Is the Single Arm Bench Dumbbell Wrist Curl good for beginners?

Yes. The Single Arm Bench Dumbbell Wrist Curl is rated beginner: it uses a dumbbell and the movement is simple to learn. Start light, focus on the full range of motion and add load once every rep looks the same.

What can I do instead of the Single Arm Bench Dumbbell Wrist Curl?

If you cannot do the Single Arm Bench Dumbbell Wrist Curl, try the Bench Barbell Wrist Curl, the Behind the Back Barbell Wrist Curl or the Single Arm Bench Dumbbell Reverse Wrist Curl. Each of them trains the forearms through a similar movement, so you can swap them in without changing the rest of the workout.

How many sets and reps should I do?

It depends on your goal. For the Single Arm Bench Dumbbell Wrist Curl, a sensible starting point is muscle growth: 3–4 × 10–15 per side with 60–90 s rest; endurance / finisher: 2–3 × 15–20 per side with 45 s rest. Do it after your compound lifts. It is a finishing movement, not the main event.

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